CN116460507A - Low-voltage four-wire cross arm welding tool and automatic welding device and method - Google Patents

Low-voltage four-wire cross arm welding tool and automatic welding device and method Download PDF

Info

Publication number
CN116460507A
CN116460507A CN202310476809.0A CN202310476809A CN116460507A CN 116460507 A CN116460507 A CN 116460507A CN 202310476809 A CN202310476809 A CN 202310476809A CN 116460507 A CN116460507 A CN 116460507A
Authority
CN
China
Prior art keywords
tool
angle steel
clamping block
welding
shaped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310476809.0A
Other languages
Chinese (zh)
Other versions
CN116460507B (en
Inventor
彭兰桂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chaling Nanguo Power Fittings Co ltd
Original Assignee
Chaling Nanguo Power Fittings Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chaling Nanguo Power Fittings Co ltd filed Critical Chaling Nanguo Power Fittings Co ltd
Priority to CN202310476809.0A priority Critical patent/CN116460507B/en
Publication of CN116460507A publication Critical patent/CN116460507A/en
Application granted granted Critical
Publication of CN116460507B publication Critical patent/CN116460507B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention belongs to the technical field of manufacturing of electric accessories, in particular to a low-voltage four-wire cross arm welding tool and an automatic welding device and method, aiming at the problems that in the prior art, when angle steel is installed and disassembled, the operation steps are more, the installation and disassembly efficiency is affected, and workers are required to weld and rotate the tool at the same time, the invention provides the following scheme, which comprises the following steps: the tool comprises a tool and angle steel, wherein the bottom of the tool is fixedly connected with a bottom plate, and a plurality of magnets are fixedly embedded in the bottom of the bottom plate; the length limiting structure is arranged in the tool and used for clamping the angle steel at the top of the tool in the middle, so that later welding is facilitated.

Description

Low-voltage four-wire cross arm welding tool and automatic welding device and method
Technical Field
The invention relates to the technical field of manufacturing of electric accessories, in particular to a low-voltage four-wire cross arm welding tool and an automatic welding device and method.
Background
The cross arm is an important component in the telegraph pole and is used for installing insulators and hardware fittings to support wires and lightning wires and keep a certain safety distance according to regulations, and when the cross arm is manufactured, equilateral angle steel and M-shaped sizing blocks are required to be welded together.
However, the following problems still exist in the welding process of the angle steel and the M-shaped sizing block:
1. when the angle steel and the M-shaped sizing block are welded, the angle steel is required to be manually installed on the tool so as to facilitate later welding work, and when the angle steel is installed on the tool, more operation steps such as the invention of the publication of CN113478154B are required to be performed, a plurality of screws are required to be screwed to install the angle steel, so that the later cross arm welding efficiency is low, and the working intensity of workers is increased;
2. in the prior art, a worker is required to weld the angle steel and the M-shaped sizing block on the tool in the welding process, and the worker is required to continuously rotate the tool in the welding process to weld from different angles, so that the welding efficiency is affected;
3. after welding, the operator who needs to install repeatedly can dismantle the angle steel from the frock.
Aiming at the problems, the invention provides a low-voltage four-wire cross arm welding tool and an automatic welding device and method.
Disclosure of Invention
The invention provides a low-voltage four-wire cross arm welding tool and an automatic welding device and method, which solve the defects that in the prior art, the operation steps are more when angle steel is installed and disassembled, the installation and disassembly efficiency is affected, and workers are required to weld and rotate the tool.
The invention provides the following technical scheme:
a low voltage four-wire cross arm welding tooling, comprising:
the tool comprises a tool and angle steel, wherein the bottom of the tool is fixedly connected with a bottom plate, and a plurality of magnets are fixedly embedded in the bottom of the bottom plate;
the length limiting structure is arranged in the tool and used for clamping the angle steel at the top of the tool in the middle, so that later welding is facilitated;
the clamping structure is arranged in the tool and used for tightly clamping the angle steel on the outer wall of the tool, so that the angle steel is prevented from shaking in the later welding process.
In one possible design, the length limiting structure comprises a bidirectional screw rod rotationally connected in the tool, a third gear is clamped on the outer wall of the bidirectional screw rod, a first clamping block and a right-angle clamping block which are in sliding fit with the tool are sleeved on the outer wall thread of the bidirectional screw rod, the first clamping block and the right-angle clamping block are respectively positioned on the front thread section and the back thread section of the bidirectional screw rod, the top end of the first clamping block extends to the upper side of the tool, a trapezoid pressing block for pressing diagonal steel is slidingly connected in the first clamping block, a first spring is fixedly connected to the top of the trapezoid pressing block, the top end of the first spring is fixedly connected with the top of the first clamping block, two fixed shafts are fixedly connected in the right-angle clamping block, a rotating block for clamping angle steel is sleeved on the outer wall of the fixed shaft, two torsion springs are sleeved on the outer wall of the rotating block, one end of each torsion spring, which is close to each other, is fixedly connected with the rotating block, the other end of the torsion spring is fixedly connected with the inner wall of one side of the right-angle clamping block, and the right-angle clamping block is fixedly connected with two limiting plates; the bidirectional screw rod rotates to drive the first clamping block and the right-angle clamping block to move towards the middle, the first clamping block and the right-angle clamping block can carry out preliminary clamping on the angle steel, so that the angle steel can be centered, and when the first clamping block and the right-angle clamping block move in the middle, the trapezoidal pressing block is matched with the first spring, and the wedge block and the rotating block can tightly fit the angle steel with the outer wall of the tool.
In one possible design, the clamping structure comprises a rotating shaft which is rotationally connected in the tool, two turntables are fixedly sleeved on the outer wall of the rotating shaft, one side of each turntable is rotationally connected with a first connecting rod, one side of each turntable is rotationally connected with a second connecting rod through a pin shaft, the top end of each first connecting rod is rotationally connected with a vertical L-shaped clamping block which clamps in the vertical direction of the diagonal steel, the vertical L-shaped clamping blocks slide and penetrate through the tool, one end, far away from the turntables, of each second connecting rod is rotationally connected with a U-shaped sleeve which slides and penetrates through the tool, a transverse L-shaped clamping block is in sliding connection with the U-shaped sleeve, and a threaded rod which is in threaded connection with the transverse L-shaped clamping block is in sliding connection with the U-shaped clamping block is in rotation and penetrates through the U-shaped sleeve; the device is characterized in that the device is used for adjusting the height of a transverse L-shaped clamping block, a first gear meshed with a third gear is fixedly sleeved on the outer wall of the rotating shaft, the rotating shaft drives a first connecting rod and a second connecting rod to rotate, the first connecting rod and the second connecting rod can pull the vertical L-shaped clamping block and the U-shaped sleeve towards the middle, at the moment, the vertical L-shaped clamping block and the transverse L-shaped clamping block can be matched to fix diagonal steel again, and due to the fact that the angle steel is different in size, the threaded rod can be rotated to adjust the lifting of the transverse L-shaped clamping block, and then angle steel with different sizes is suitable for being used.
In one possible design, the outer wall of the bidirectional screw rod is provided with a plurality of sliding grooves, a plurality of trapezoidal pins are connected in the sliding grooves in a sliding manner, one sides of the trapezoidal pins, which are close to each other, are fixedly connected with a second spring, the other end of the second spring is fixedly connected with the inner wall of one side of the sliding groove, and a plurality of clamping grooves with the trapezoidal pins matched with each other are formed in the third gear; (can also set up the gearbox at one side inner wall of frock, first gear can increase third gear pivoted number of turns through the gearbox), and first gear meshes with third gear mutually, and after right angle clamp splice and first clamp splice with the angle steel centre gripping, because trapezoidal round pin and draw-in groove's cooperation, when first gear continued to drive third gear rotation, two-way lead screw remained static, and then can make vertical L type clamp splice and horizontal L type clamp splice continue to remove and accomplish the fixed to the angle steel.
In one possible design, one end of the rotating shaft extends to one side of the tool, the sliding sleeve on the outer wall of the rotating shaft is provided with a sliding sleeve located on one side of the tool, and one end, away from the tool, of the sliding sleeve is fixedly connected with a second gear.
In one possible design, a sliding rod is fixedly connected in the tool, two dust scraping plates are sleeved on the outer wall of the sliding rod in a sliding manner, two telescopic rods are fixedly connected on the inner wall of the bottom of the tool, the output shafts of the two telescopic rods are fixedly connected with the same fourth transverse plate, the top of the fourth transverse plate is slidably connected with a connecting rod, one end of the connecting rod is rotationally connected with a pin shaft on one side of one turntable, the other end of the connecting rod is rotationally connected with one side of the other turntable, two rotating rods are rotationally connected to the bottom of the fourth transverse plate, the bottom ends of the two rotating rods are respectively rotationally connected with the tops of the two dust scraping plates, a shielding strip positioned above the dust scraping plates is fixedly sleeved on the outer wall of the telescopic rods, external scrap iron can be prevented from falling between the two dust scraping plates through the shielding strip, and inclined holes for discharging scrap iron are formed in two sides of the tool; when the manual work welds the cross arm, fixed the angle steel through rotating the pivot, can promote the fourth diaphragm through the connecting rod when the carousel rotates and reciprocate, the fourth diaphragm drives the dwang and rotates, two scrape the dirt board to the centre remove and with first rack cooperation, afterwards when polishing at the top of angle steel and diagonal steel welding, the iron fillings fall to the inside of frock, after the welding, reverse rotation pivot, remove the fixing to the angle steel, and the connecting rod drives the fourth diaphragm and move down, two scrape the dirt board and remove to both sides under the effect of dwang, and then can pass through the inclined hole with the iron fillings that fall to in the frock and discharge external world.
An automatic welding set of low pressure four-wire cross arm for weld foretell frock centre gripping's angle steel, include:
the device comprises two brackets and an M-shaped backing plate, wherein a metal conveyor belt is arranged between the two brackets, a first transverse plate, a second transverse plate and a third transverse plate are fixedly connected between the two brackets, the top of the first transverse plate is fixedly connected with a driving motor, an output shaft of the driving motor rotates to penetrate through the first transverse plate and is fixedly connected with a polishing disc, the center of the top of the angle steel is polished through the polishing disc, later welding work is facilitated, and a placement hole for placing the M-shaped backing plate at the top of the angle steel is formed in the second transverse plate;
and the welding structure is arranged in the third transverse plate and used for automatically welding the M-shaped base plate with the angle steel.
In one possible design, the welding structure comprises a rotating motor fixedly connected to the top of a third transverse plate, wherein the top of the third transverse plate is rotationally connected with a reciprocating screw rod through a base, an output shaft of the rotating motor is fixedly connected with one end of the reciprocating screw rod, the top of the third transverse plate is slidably connected with a T-shaped block in threaded connection with the reciprocating screw rod, two rectangular holes are formed in the third transverse plate, two first welding guns for welding an M-shaped backing plate and angle steel are slidably connected in the rectangular holes, the top ends of the two first welding guns are fixedly connected with the bottom of the third transverse plate, two second welding guns are fixedly connected to the two sides of the bottom of the third transverse plate, and an electric push rod and a position sensor are fixedly connected to the bottom of the third transverse plate; when the position sensor detects that the M-shaped base plate moves to the lower part of the third transverse plate, the rotary motor is started to drive the reciprocating screw rod to rotate, the reciprocating screw rod drives the two first welding guns to move to one side through the T-shaped block, the two first welding guns can weld the two sides of the M-shaped base plate and the angle steel, after the third transverse plate moves to the end of the rectangular hole, the metal conveyor belt continues to convey, and the second welding gun can weld the other sides of the moving M-shaped base plate, so that welding work can be automatically completed in the tool conveying process.
In one possible design, an L-shaped hole for placing angle steel on a tool is formed in one bracket, a first rack and a second rack are fixedly connected to one side of the other bracket, the first rack and the second rack are respectively positioned above and below the L-shaped hole, the first rack and the second rack are meshed with the second gear, and a material guiding inclined plate positioned below the metal conveyor belt is fixedly connected between the two brackets; when the metal conveyer belt conveys the tool and the angle steel to one side, the second gear drives the sliding sleeve and the rotating shaft to rotate under the action of the first rack when the second gear is meshed with the first rack, and then the clamping and fixing of the angle steel can be automatically completed.
The application method of the low-voltage four-wire cross arm automatic welding device comprises the following steps of:
S1, adsorbing a tool on the surface layer of a metal conveyor belt through a magnet, starting the metal conveyor belt, conveying a plurality of tools through the metal conveyor belt, inserting angle steel into the top of the tool through an L-shaped hole after the tools move to positions corresponding to the L-shaped hole, attaching an inner right-angle surface of the angle steel to an outer right-angle surface of the tool at the moment, pushing two rotating blocks to rotate into the tool in the process of inserting the angle steel until one end of the angle steel is contacted with a first clamping block, connecting, and then pulling a sliding sleeve and a second gear outwards;
s2, conveying the tool and the angle steel to one side by a metal conveyor belt, when a second gear is meshed with a first rack, driving a sliding sleeve and a rotating shaft to rotate under the action of the first rack, wherein the first gear is meshed with a third gear (the first gear can drive the third gear and a bidirectional screw rod to rotate for a plurality of circles through a gearbox, the third gear drives a first clamping block and a right angle clamping block to move towards the middle through the bidirectional screw rod, the first clamping block and the right angle clamping block can initially clamp the angle steel, so that the angle steel can be centered, and when the first clamping block and the right angle clamping block move in the middle, the trapezoid pressing block is matched with a first spring, and the wedge block and the rotating block can tightly fit the angle steel with the outer wall of the tool;
S3, after the first clamping block and the right-angle clamping block limit angle steel, the rotating shaft and the first gear continue to rotate, and due to the cooperation of the trapezoidal pin and the clamping groove, the bidirectional screw rod keeps static when the first gear continues to drive the third gear to rotate, the rotating shaft drives the first connecting rod and the second connecting rod to rotate, the first connecting rod and the second connecting rod can pull the vertical L-shaped clamping block and the U-shaped sleeve towards the middle, at the moment, the cooperation of the vertical L-shaped clamping block and the horizontal L-shaped clamping block can fix angle steel again, and due to the different sizes of angle steel, the threaded rod can be rotated to adjust the lifting of the horizontal L-shaped clamping block, so that the angle steel is suitable for angle steel with different sizes;
s4, when the tool is required to be manually operated and the cross arm is welded manually, angle steel is fixed through a rotating shaft, the rotating disc can push the fourth cross plate to move upwards through a connecting rod when rotating, the fourth cross plate drives the rotating rod to rotate, the two dust scraping plates move towards the middle and are matched with the first rack, then when the top of the angle steel is polished and the diagonal steel is welded, scrap iron falls into the tool, after the welding is finished, the rotating shaft is reversely rotated to release the fixing of the angle steel, the connecting rod drives the fourth cross plate to move downwards, the two dust scraping plates move towards two sides under the action of the rotating rod, and then scrap iron falling into the tool can be discharged out of the outside through the inclined hole;
S5, the metal conveyor belt conveys the tool to one side and can automatically clamp the angle steel through the first rack, then the polishing disc is driven by the driving motor to rotate, the center position of the top of the angle steel can be polished, the M-shaped backing plate is welded on the angle steel in the later stage, when the tool moves to the lower part of the second transverse plate, the M-shaped backing plate is placed at the center position of the top of the angle steel through the placement hole, when the position sensor detects that the M-shaped backing plate moves to the lower part of the third transverse plate, the rotating motor is started to drive the reciprocating screw to rotate, the reciprocating screw drives the two first welding guns to move to one side through the T-shaped blocks, the two first welding guns can weld the two sides of the M-shaped backing plate and the angle steel, after the third transverse plate moves to the end of the rectangular hole, the second welding gun can continuously convey the moving M-shaped backing plate, and the other sides of the moving M-shaped backing plate are welded, so that welding work can be automatically completed in the conveying process of the tool;
s6, when the metal conveyor belt conveys the tool to the lower side, the second gear is meshed with the second rack, the second rack drives the second gear and the rotating shaft to reversely rotate, at the moment, the vertical L-shaped clamping blocks, the horizontal L-shaped clamping blocks, the right-angle clamping blocks and the first clamping blocks can be automatically released to clamp angle steels, and the angle steels and the M-shaped backing plates fall on the guide inclined plate under the action of gravity, so that later-stage workers can conveniently collect the angle steels.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
According to the invention, a first clamping block and a right-angle clamping block which are in sliding fit with a tool are sleeved on the outer wall thread of the bidirectional screw rod, the first clamping block and the right-angle clamping block are respectively positioned on the front thread section and the back thread section of the bidirectional screw rod, a trapezoid pressing block for pressing diagonal steel is connected in the first clamping block in a sliding manner, two fixed shafts are fixedly connected in the right-angle clamping block, a rotating block for clamping the angle steel is sleeved on the outer wall of the fixed shaft in a rotating manner, a wedge-shaped block for pressing the angle steel is fixedly connected on one side of the rotating block, the bidirectional screw rod rotates to drive the first clamping block and the right-angle clamping block to move towards the middle, so that the angle steel can be centered, and when the first clamping block and the right-angle clamping block move in the middle, the trapezoid pressing block and the first spring are matched, and the wedge-shaped block and the rotating block can tightly attach the angle steel to the outer wall of the tool;
according to the invention, two turntables are fixedly sleeved on the outer wall of the rotating shaft, a first connecting rod is rotatably connected to one side of each turntable, a second connecting rod is rotatably connected to one side of each turntable, a vertical L-shaped clamping block is rotatably connected to the top end of each first connecting rod, a U-shaped sleeve is rotatably connected to one end of each second connecting rod far away from each turntable, a transverse L-shaped clamping block is slidably connected in each U-shaped sleeve, a threaded rod in threaded connection with each transverse L-shaped clamping block is rotatably penetrated in each U-shaped sleeve, the rotating shaft drives the first connecting rod and the second connecting rod to rotate, the first connecting rod and the second connecting rod can pull the vertical L-shaped clamping blocks and the U-shaped sleeve to the middle, at the moment, the vertical L-shaped clamping blocks and the transverse L-shaped clamping blocks can be fixed to angle steel again in cooperation, and lifting of the transverse L-shaped clamping blocks can be rotatably adjusted due to different sizes of angle steel threaded rods, and angle steel with different sizes can be further used;
According to the invention, the top of the third transverse plate is connected with a T-shaped block in threaded connection with the reciprocating screw rod in a sliding manner, two first welding guns are connected in the rectangular hole in a sliding manner, the top ends of the two first welding guns are fixedly connected with the bottom of the third transverse plate, the two sides of the bottom of the third transverse plate are fixedly connected with second welding guns, the bottom of the third transverse plate is fixedly connected with an electric push rod and a position sensor, the output shaft of the electric push rod is fixedly connected with a triangular press block, the reciprocating screw rod drives the two first welding guns to move to one side through the T-shaped block, the two first welding guns can weld the two sides of an M-shaped base plate and angle steel, after the third transverse plate moves to the end of the rectangular hole, a metal conveyor belt can continue to convey the moving M-shaped base plate, and the second welding guns can weld the other sides of the moving M-shaped base plate, so that welding work can be automatically completed in the tool conveying process;
according to the invention, one bracket is internally provided with the L-shaped hole for placing the angle steel on the tool, one side of the other bracket is fixedly connected with the first rack and the second rack, the first rack and the second rack are respectively positioned above and below the L-shaped hole, the first rack and the second rack are both meshed with the second gear, when the second gear is meshed with the first rack, the second gear drives the sliding sleeve and the rotating shaft to rotate under the action of the first rack, so that the clamping and the fixing of the angle steel can be automatically completed, and when the metal conveyor belt conveys the tool to the lower side, the second rack drives the second gear and the rotating shaft to reversely rotate, so that the clamping of the vertical L-shaped clamping block, the transverse L-shaped clamping block, the right-angle clamping block and the first clamping block on the angle steel can be automatically released, and the operation is simple, and manual disassembly and installation are not needed.
According to the invention, the length limiting structure and the clamping structure can be driven respectively through rotating the rotating shaft, so that angle steel can be placed in the middle and can be clamped from different angles, the operation is simple, the clamping and the disassembly of the angle steel can be automatically completed through the matching of the first rack and the second rack when the tool is magnetically adsorbed on the metal conveyor belt, and in addition, the welding structure can be used for automatically welding four sides of the M-shaped backing plate, so that the welding efficiency is improved.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a first view angle of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
fig. 2 is a schematic view of a second perspective three-dimensional structure of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
fig. 3 is a schematic three-dimensional cross-sectional structure diagram of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
fig. 4 is a schematic three-dimensional structure diagram of a length limiting structure of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a three-dimensional explosion structure of a right-angle clamping block of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a three-dimensional explosion structure of a first clamping block of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
Fig. 7 is a schematic three-dimensional structure diagram of a clamping structure of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a three-dimensional cross-sectional structure of a U-shaped sleeve of a low-voltage four-wire cross-arm welding tool according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a three-dimensional explosion structure of a bidirectional screw rod and a third gear of a low-voltage four-wire cross arm welding tool according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a front view cross-sectional structure of a tooling of a low-voltage four-wire cross-arm welding tooling according to a second embodiment of the present invention;
fig. 11 is an enlarged schematic diagram of a position a of a low-voltage four-wire cross arm welding tool according to the second embodiment of the present invention;
fig. 12 is a schematic three-dimensional structure diagram of an automatic welding device for a low-voltage four-wire cross arm according to an embodiment of the present invention;
fig. 13 is a schematic view of an internal three-dimensional structure of a low-voltage four-wire cross arm automatic welding device according to an embodiment of the present invention;
fig. 14 is a schematic three-dimensional structure diagram of an M-shaped backing plate, a second rack and a second gear of an automatic welding device for a low-voltage four-wire cross arm according to an embodiment of the present invention;
fig. 15 is a schematic view of a first perspective three-dimensional structure of a welding structure of a low-voltage four-wire cross arm automatic welding device according to an embodiment of the present invention;
Fig. 16 is a schematic view of a second perspective three-dimensional structure of a welding structure of a low-voltage four-wire cross arm automatic welding device according to an embodiment of the present invention.
Reference numerals:
1. a tool; 2. a rotating shaft; 3. a turntable; 4. a first link; 5. vertical L-shaped clamping blocks; 6. a second link; 7. a U-shaped sleeve; 8. a transverse L-shaped clamping block; 9. a threaded rod; 10. a first gear; 11. a two-way screw rod; 12. a first clamping block; 13. a first spring; 14. a trapezoidal pressing block; 15. a right-angle clamping block; 16. a fixed shaft; 17. a rotating block; 18. a torsion spring; 19. a limiting plate; 20. wedge blocks; 21. a bottom plate; 22. a magnet; 23. a sliding sleeve; 24. a second gear; 25. a third gear; 26. a clamping groove; 27. a chute; 28. a trapezoidal pin; 29. a second spring; 30. a bracket; 31. a metal conveyor belt; 32. an L-shaped hole; 33. a first cross plate; 34. a driving motor; 35. polishing the grinding disc; 36. a second cross plate; 37. placing the hole; 38. a third cross plate; 39. a reciprocating screw rod; 40. a rotating motor; 41. a rectangular hole; 42. a T-shaped block; 43. a first welding gun; 44. a second welding gun; 45. an electric push rod; 46. triangular pressing blocks; 47. a position sensor; 48. an M-shaped backing plate; 49. a second rack; 50. a material guiding sloping plate; 51. angle steel; 52. a slide bar; 53. inclined holes; 54. a telescopic rod; 55. a fourth cross plate; 56. a connecting rod; 57. a rotating lever; 58. a first rack; 59. a shielding strip; 60. a dust scraping plate.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present invention are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present invention, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present invention.
In embodiments of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the embodiment of the present invention, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Example 1
Referring to fig. 1, 2 and 3, the low-voltage four-wire cross arm welding fixture of the present embodiment includes:
the tool comprises a tool 1 and angle steel 51, wherein the bottom of the tool 1 is fixedly connected with a bottom plate 21 through bolts, and a plurality of magnets 22 are fixedly embedded at the bottom of the bottom plate 21; the length limiting structure is arranged in the tool 1 and is used for clamping the angle steel 51 at the top of the tool 1 in a centered manner, so that later welding is facilitated; the clamping structure is arranged in the tool 1 and used for tightly clamping the angle steel 51 on the outer wall of the tool 1, so that the angle steel 51 is prevented from shaking in the later welding process.
Referring to fig. 4, 5 and 6, the length limiting structure comprises a bidirectional screw rod 11 rotatably connected in a tool 1, a third gear 25 is clamped on the outer wall of the bidirectional screw rod 11, a first clamping block 12 and a right-angle clamping block 15 which are in sliding fit with the tool 1 are sleeved on the outer wall thread of the bidirectional screw rod 11, the first clamping block 12 and the right-angle clamping block 15 are respectively positioned on the front and back thread sections of the bidirectional screw rod 11, the top end of the first clamping block 12 extends to the upper side of the tool 1, a trapezoidal pressing block 14 for pressing diagonal steel 51 is slidably connected in the first clamping block 12, a first spring 13 is fixedly connected to the top of the trapezoidal pressing block 14, the top end of the first spring 13 is fixedly connected with the top of the first clamping block 12, two fixing shafts 16 are fixedly connected in the right-angle clamping block 15, a rotating block 17 for clamping angle steel 51 is sleeved on the outer wall of the fixing shafts 16, two torsion springs 18 are sleeved on the outer wall of the fixing shafts 16, one end of each torsion spring 18 is fixedly connected with the rotating block 17, the other end of each torsion spring 18 is fixedly connected with the other, and one side of the torsion springs 19 is fixedly connected with the inner wall of the right-angle clamping block 15, and the right-angle clamping block 19 is fixedly connected with the right-angle clamping block 19; the bidirectional screw rod 11 rotates to drive the first clamping block 12 and the right-angle clamping block 15 to move towards the middle, the first clamping block 12 and the right-angle clamping block 15 can carry out preliminary clamping on the angle steel 51, so that the angle steel 51 can be centered, and when the first clamping block 12 and the right-angle clamping block 15 move in the middle, the trapezoidal pressing block 14 is matched with the first spring 13, and the wedge block 20 and the rotating block 17 can tightly attach the angle steel 51 to the outer wall of the tool 1.
Referring to fig. 7 and 8, the clamping structure comprises a rotating shaft 2 rotatably connected in a tool 1, two turntables 3 are fixedly sleeved on the outer wall of the rotating shaft 2, a first connecting rod 4 is rotatably connected to one side of each turntable 3, a second connecting rod 6 is rotatably connected to one side of each turntable 3 through a pin shaft, a vertical L-shaped clamping block 5 for clamping a diagonal steel 51 in the vertical direction is rotatably connected to the top end of each first connecting rod 4, the vertical L-shaped clamping block 5 penetrates through the tool 1 in a sliding manner, a U-shaped sleeve 7 which penetrates through the tool 1 in a sliding manner is rotatably connected to one end, far away from the turntables 3, of each second connecting rod 6, and a threaded rod 9 which is in threaded connection with the transverse L-shaped clamping block 8,U in a sliding manner is rotatably connected to the U-shaped sleeve 7; the fixed cover of outer wall for adjusting horizontal L type clamp splice 8 is equipped with the first gear 10 with third gear 25 engaged with, and pivot 2 drives first connecting rod 4 and second connecting rod 6 and rotates, and first connecting rod 4 and second connecting rod 6 can be with vertical L type clamp splice 5 and U type cover 7 pulling to the centre, and vertical L type clamp splice 5 can be fixed angle steel 51 once more with the cooperation of horizontal L type clamp splice 8 this moment, because angle steel 51's size is different, can rotate threaded rod 9 and adjust horizontal L type clamp splice 8's lift, and then be suitable for with not unidimensional angle steel 51.
Referring to fig. 9, the outer wall of the bidirectional screw rod 11 is provided with a plurality of sliding grooves 27, trapezoidal pins 28 are slidably connected in the sliding grooves 27, a second spring 29 is fixedly connected to one side of the trapezoidal pins 28, the other end of the second spring 29 is fixedly connected with one side inner wall of the sliding groove 27, and a plurality of clamping grooves 26 matched with the trapezoidal pins 28 are arranged in the third gear 25; (the gearbox can be further arranged on the inner wall of one side of the tool 1, the first gear 10 can increase the rotation number of the third gear 25 through the gearbox), the first gear 10 is meshed with the third gear 25, after the right-angle clamping block 15 and the first clamping block 12 clamp the angle steel 51, due to the cooperation of the trapezoidal pin 28 and the clamping groove 26, when the first gear 10 continuously drives the third gear 25 to rotate, the bidirectional screw rod 11 is kept still, and then the vertical L-shaped clamping block 5 and the horizontal L-shaped clamping block 8 can continuously move to fix the angle steel 51.
Referring to fig. 7, one end of the rotating shaft 2 extends to one side of the tool 1, a sliding sleeve 23 located on one side of the tool 1 is sleeved on the outer wall of the rotating shaft 2 in a sliding manner, and a second gear 24 is fixedly connected to one end, away from the tool 1, of the sliding sleeve 23.
Referring to fig. 12 and 13, the low-voltage four-wire cross arm automatic welding device of the present embodiment is configured to weld the angle steel clamped by the tool, and includes:
The device comprises two brackets 30 and an M-shaped backing plate 48, wherein a metal conveyor belt 31 is arranged between the two brackets 30, a first transverse plate 33, a second transverse plate 36 and a third transverse plate 38 are fixedly connected between the two brackets 30 through bolts, a driving motor 34 is fixedly connected to the top of the first transverse plate 33 through bolts, an output shaft of the driving motor 34 rotates to penetrate through the first transverse plate 33 and is fixedly connected with a polishing disc 35, the polishing disc 35 polishes the middle position of the top of the angle steel 51, later welding work is facilitated, and a placing hole 37 for placing the M-shaped backing plate 48 on the top of the angle steel 51 is formed in the second transverse plate 36; and a welding structure provided in the third cross plate 38 for automatically welding the M-shaped pad 48 with the angle steel 51.
Referring to fig. 15 and 16, the welding structure includes a rotating motor 40 fixedly connected to the top of a third diaphragm 38 through a bolt, a reciprocating screw rod 39 is rotatably connected to the top of the third diaphragm 38 through a base, an output shaft of the rotating motor 40 is fixedly connected to one end of the reciprocating screw rod 39 through a coupling, a T-shaped block 42 in threaded connection with the reciprocating screw rod 39 is slidably connected to the top of the third diaphragm 38, two rectangular holes 41 are formed in the third diaphragm 38, two first welding guns 43 for welding an M-shaped backing plate 48 and angle steel 51 are slidably connected to the rectangular holes 41, the top ends of the two first welding guns 43 are fixedly connected to the bottom of the third diaphragm 38 through bolts, two second welding guns 44 are fixedly connected to both sides of the bottom of the third diaphragm 38 through bolts, an electric push rod 45 and a position sensor 47 are fixedly connected to the bottom of the third diaphragm 38 through bolts, and a triangular pressing block 46 for pressing the M-shaped backing plate 48 is fixedly connected to the output shaft of the electric push rod 45 through bolts; when the position sensor 47 detects that the M-shaped backing plate 48 moves to the lower side of the third transverse plate 38, the rotating motor 40 is started to drive the reciprocating screw rod 39 to rotate, the reciprocating screw rod 39 drives the two first welding guns 43 to move to one side through the T-shaped block 42, the two first welding guns 43 can weld the two sides of the M-shaped backing plate 48 and the angle steel 51, after the third transverse plate 38 moves to the end of the rectangular hole 41, the metal conveyor belt 31 continues to be conveyed, and the second welding gun 44 can weld the other side of the moving M-shaped backing plate 48, so that welding work can be automatically completed in the conveying process of the tool 1.
Referring to fig. 12 and 14, an L-shaped hole 32 for placing the angle steel 51 on the tool 1 is formed in one bracket 30, a first rack 58 and a second rack 49 are fixedly connected to one side of the other bracket 30 through bolts, the first rack 58 and the second rack 49 are respectively located above and below the L-shaped hole 32, the first rack 58 and the second rack 49 are meshed with the second gear 24, and a material guiding inclined plate 50 located below the metal conveyor belt 31 is fixedly connected between the two brackets 30 through bolts; when the metal conveying belt 31 conveys the tool 1 and the angle steel 51 to one side, when the second gear 24 is meshed with the first rack 58, the second gear 24 drives the sliding sleeve 23 and the rotating shaft 2 to rotate under the action of the first rack 58, then the clamping and fixing of the angle steel 51 can be automatically completed, when the metal conveying belt 31 conveys the tool 1 to the lower side, the second gear 24 is meshed with the second rack 49, the second rack 49 drives the second gear 24 and the rotating shaft 2 to reversely rotate, at the moment, the clamping of the vertical L-shaped clamping block 5, the transverse L-shaped clamping block 8 and the right-angle clamping block 15 to the angle steel 51 by the first clamping block 12 can be automatically released, the angle steel 51 and the M-shaped base plate 48 fall on the guide inclined plate 50 under the action of gravity, and the later-stage staff can conveniently collect the angle steel.
Example 2
Referring to fig. 1, 2 and 3, the low-voltage four-wire cross arm welding fixture of the present embodiment includes:
the tool comprises a tool 1 and angle steel 51, wherein the bottom of the tool 1 is fixedly connected with a bottom plate 21 through bolts, and a plurality of magnets 22 are fixedly embedded at the bottom of the bottom plate 21; the length limiting structure is arranged in the tool 1 and is used for clamping the angle steel 51 at the top of the tool 1 in a centered manner, so that later welding is facilitated; the clamping structure is arranged in the tool 1 and used for tightly clamping the angle steel 51 on the outer wall of the tool 1, so that the angle steel 51 is prevented from shaking in the later welding process.
Referring to fig. 4, 5 and 6, the length limiting structure comprises a bidirectional screw rod 11 rotatably connected in a tool 1, a third gear 25 is clamped on the outer wall of the bidirectional screw rod 11, a first clamping block 12 and a right-angle clamping block 15 which are in sliding fit with the tool 1 are sleeved on the outer wall thread of the bidirectional screw rod 11, the first clamping block 12 and the right-angle clamping block 15 are respectively positioned on the front and back thread sections of the bidirectional screw rod 11, the top end of the first clamping block 12 extends to the upper side of the tool 1, a trapezoidal pressing block 14 for pressing diagonal steel 51 is slidably connected in the first clamping block 12, a first spring 13 is fixedly connected to the top of the trapezoidal pressing block 14, the top end of the first spring 13 is fixedly connected with the top of the first clamping block 12, two fixing shafts 16 are fixedly connected in the right-angle clamping block 15, a rotating block 17 for clamping angle steel 51 is sleeved on the outer wall of the fixing shafts 16, two torsion springs 18 are sleeved on the outer wall of the fixing shafts 16, one end of each torsion spring 18 is fixedly connected with the rotating block 17, the other end of each torsion spring 18 is fixedly connected with the other, and one side of the torsion springs 19 is fixedly connected with the inner wall of the right-angle clamping block 15, and the right-angle clamping block 19 is fixedly connected with the right-angle clamping block 19; the bidirectional screw rod 11 rotates to drive the first clamping block 12 and the right-angle clamping block 15 to move towards the middle, the first clamping block 12 and the right-angle clamping block 15 can carry out preliminary clamping on the angle steel 51, so that the angle steel 51 can be centered, and when the first clamping block 12 and the right-angle clamping block 15 move in the middle, the trapezoidal pressing block 14 is matched with the first spring 13, and the wedge block 20 and the rotating block 17 can tightly attach the angle steel 51 to the outer wall of the tool 1.
Referring to fig. 7 and 8, the clamping structure comprises a rotating shaft 2 rotatably connected in a tool 1, two turntables 3 are fixedly sleeved on the outer wall of the rotating shaft 2, a first connecting rod 4 is rotatably connected to one side of each turntable 3, a second connecting rod 6 is rotatably connected to one side of each turntable 3 through a pin shaft, a vertical L-shaped clamping block 5 for clamping a diagonal steel 51 in the vertical direction is rotatably connected to the top end of each first connecting rod 4, the vertical L-shaped clamping block 5 penetrates through the tool 1 in a sliding manner, a U-shaped sleeve 7 which penetrates through the tool 1 in a sliding manner is rotatably connected to one end, far away from the turntables 3, of each second connecting rod 6, and a threaded rod 9 which is in threaded connection with the transverse L-shaped clamping block 8,U in a sliding manner is rotatably connected to the U-shaped sleeve 7; the fixed cover of outer wall for adjusting horizontal L type clamp splice 8 is equipped with the first gear 10 with third gear 25 engaged with, and pivot 2 drives first connecting rod 4 and second connecting rod 6 and rotates, and first connecting rod 4 and second connecting rod 6 can be with vertical L type clamp splice 5 and U type cover 7 pulling to the centre, and vertical L type clamp splice 5 can be fixed angle steel 51 once more with the cooperation of horizontal L type clamp splice 8 this moment, because angle steel 51's size is different, can rotate threaded rod 9 and adjust horizontal L type clamp splice 8's lift, and then be suitable for with not unidimensional angle steel 51.
Referring to fig. 9, the outer wall of the bidirectional screw rod 11 is provided with a plurality of sliding grooves 27, trapezoidal pins 28 are slidably connected in the sliding grooves 27, a second spring 29 is fixedly connected to one side of the trapezoidal pins 28, the other end of the second spring 29 is fixedly connected with one side inner wall of the sliding groove 27, and a plurality of clamping grooves 26 matched with the trapezoidal pins 28 are arranged in the third gear 25; (the gearbox can be further arranged on the inner wall of one side of the tool 1, the first gear 10 can increase the rotation number of the third gear 25 through the gearbox), the first gear 10 is meshed with the third gear 25, after the right-angle clamping block 15 and the first clamping block 12 clamp the angle steel 51, due to the cooperation of the trapezoidal pin 28 and the clamping groove 26, when the first gear 10 continuously drives the third gear 25 to rotate, the bidirectional screw rod 11 is kept still, and then the vertical L-shaped clamping block 5 and the horizontal L-shaped clamping block 8 can continuously move to fix the angle steel 51.
Referring to fig. 7, one end of the rotating shaft 2 extends to one side of the tool 1, a sliding sleeve 23 located on one side of the tool 1 is sleeved on the outer wall of the rotating shaft 2 in a sliding manner, and a second gear 24 is fixedly connected to one end, away from the tool 1, of the sliding sleeve 23.
Referring to fig. 10 and 11, a sliding rod 52 is fixedly connected in the tool 1, two dust scraping plates 60 are arranged on the outer wall sliding sleeve of the sliding rod 52, two telescopic rods 54 are fixedly connected on the inner wall of the bottom of the tool 1, the output shafts of the two telescopic rods 54 are fixedly connected with the same fourth transverse plate 55 through bolts, the top of the fourth transverse plate 55 is slidably connected with a connecting rod 56, one end of the connecting rod 56 is rotationally connected with a pin shaft on one side of one turntable 3, the other end of the connecting rod 56 is rotationally connected with one side of the other turntable 3, two rotating rods 57 are rotationally connected on the bottom of the fourth transverse plate 55, the bottom ends of the two rotating rods 57 are respectively rotationally connected with the tops of the two dust scraping plates 60, a shielding strip 59 positioned above the dust scraping plates 60 is fixedly sleeved on the outer wall of the telescopic rods 54, external scrap iron can be prevented from falling between the two dust scraping plates 60 through the shielding strip 59, and inclined holes 53 for discharging scrap iron are formed in two sides of the tool 1; when the manual work welds the cross arm, fixed angle steel 51 through rotating pivot 2, can promote fourth diaphragm 55 through connecting rod 56 when carousel 3 rotates and shift up, fourth diaphragm 55 drives dwang 57 and rotates, two dust scraping plates 60 remove to the centre and with first rack 58 cooperation, later in the top at angle steel 51 when polishing and diagonal steel 51 welds, the iron fillings fall to frock 1's inside, after the welding, reverse rotation pivot 2, remove the fixing to angle steel 51, and connecting rod 56 drives fourth diaphragm 55 and shifts down, two dust scraping plates 60 move to both sides under the effect of dwang 57, and then can discharge the iron fillings that fall to frock 1 outside through inclined hole 53.
Referring to fig. 12 and 13, the low-voltage four-wire cross arm automatic welding device of the present embodiment is configured to weld the angle steel clamped by the tool, and includes:
the device comprises two brackets 30 and an M-shaped backing plate 48, wherein a metal conveyor belt 31 is arranged between the two brackets 30, a first transverse plate 33, a second transverse plate 36 and a third transverse plate 38 are fixedly connected between the two brackets 30 through bolts, a driving motor 34 is fixedly connected to the top of the first transverse plate 33 through bolts, an output shaft of the driving motor 34 rotates to penetrate through the first transverse plate 33 and is fixedly connected with a polishing disc 35, the polishing disc 35 polishes the middle position of the top of the angle steel 51, later welding work is facilitated, and a placing hole 37 for placing the M-shaped backing plate 48 on the top of the angle steel 51 is formed in the second transverse plate 36; and a welding structure provided in the third cross plate 38 for automatically welding the M-shaped pad 48 with the angle steel 51.
Referring to fig. 15 and 16, the welding structure includes a rotating motor 40 fixedly connected to the top of a third diaphragm 38 through a bolt, a reciprocating screw rod 39 is rotatably connected to the top of the third diaphragm 38 through a base, an output shaft of the rotating motor 40 is fixedly connected to one end of the reciprocating screw rod 39 through a coupling, a T-shaped block 42 in threaded connection with the reciprocating screw rod 39 is slidably connected to the top of the third diaphragm 38, two rectangular holes 41 are formed in the third diaphragm 38, two first welding guns 43 for welding an M-shaped backing plate 48 and angle steel 51 are slidably connected to the rectangular holes 41, the top ends of the two first welding guns 43 are fixedly connected to the bottom of the third diaphragm 38 through bolts, two second welding guns 44 are fixedly connected to both sides of the bottom of the third diaphragm 38 through bolts, an electric push rod 45 and a position sensor 47 are fixedly connected to the bottom of the third diaphragm 38 through bolts, and a triangular pressing block 46 for pressing the M-shaped backing plate 48 is fixedly connected to the output shaft of the electric push rod 45 through bolts; when the position sensor 47 detects that the M-shaped backing plate 48 moves to the lower side of the third transverse plate 38, the rotating motor 40 is started to drive the reciprocating screw rod 39 to rotate, the reciprocating screw rod 39 drives the two first welding guns 43 to move to one side through the T-shaped block 42, the two first welding guns 43 can weld the two sides of the M-shaped backing plate 48 and the angle steel 51, after the third transverse plate 38 moves to the end of the rectangular hole 41, the metal conveyor belt 31 continues to be conveyed, and the second welding gun 44 can weld the other side of the moving M-shaped backing plate 48, so that welding work can be automatically completed in the conveying process of the tool 1.
Referring to fig. 12 and 14, an L-shaped hole 32 for placing the angle steel 51 on the tool 1 is formed in one bracket 30, a first rack 58 and a second rack 49 are fixedly connected to one side of the other bracket 30 through bolts, the first rack 58 and the second rack 49 are respectively located above and below the L-shaped hole 32, the first rack 58 and the second rack 49 are meshed with the second gear 24, and a material guiding inclined plate 50 located below the metal conveyor belt 31 is fixedly connected between the two brackets 30 through bolts; when the metal conveying belt 31 conveys the tool 1 and the angle steel 51 to one side, when the second gear 24 is meshed with the first rack 58, the second gear 24 drives the sliding sleeve 23 and the rotating shaft 2 to rotate under the action of the first rack 58, then the clamping and fixing of the angle steel 51 can be automatically completed, when the metal conveying belt 31 conveys the tool 1 to the lower side, the second gear 24 is meshed with the second rack 49, the second rack 49 drives the second gear 24 and the rotating shaft 2 to reversely rotate, at the moment, the clamping of the vertical L-shaped clamping block 5, the transverse L-shaped clamping block 8 and the right-angle clamping block 15 to the angle steel 51 by the first clamping block 12 can be automatically released, the angle steel 51 and the M-shaped base plate 48 fall on the guide inclined plate 50 under the action of gravity, and the later-stage staff can conveniently collect the angle steel.
The application method of the low-voltage four-wire cross arm automatic welding device comprises the following steps:
s1, adsorbing a tool 1 on the surface layer of a metal conveyor belt 31 through a magnet 22, starting the metal conveyor belt 31, conveying a plurality of tools 1 by the metal conveyor belt 31, inserting angle steel 51 into the top of the tool 1 through an L-shaped hole 32 after the tool 1 moves to a position corresponding to the L-shaped hole 32, attaching an inner right angle surface of the angle steel 51 to an outer right angle surface of the tool 1, pushing two rotating blocks 17 to rotate into the tool 1 in the inserting process of the angle steel 51 until one end of the angle steel 51 is contacted with a first clamping block 12, and then pulling a sliding sleeve 23 and a second gear 24 outwards;
s2, conveying the tool 1 and the angle steel 51 to one side by using a metal conveyor belt 31, when a second gear 24 is meshed with a first rack 58, driving a sliding sleeve 23 and a rotating shaft 2 to rotate under the action of the first rack 58 by using the second gear 24, meshing with a third gear 25 by using a first gear 10 (the first gear 10 can drive the third gear 25 and a bidirectional screw 11 to rotate for a plurality of times through a gearbox), driving a first clamping block 12 and a right-angle clamping block 15 to move towards the middle by using the bidirectional screw 11 by using the third gear 25, primarily clamping the angle steel 51 by using the first clamping block 12 and the right-angle clamping block 15, centering the angle steel 51, and tightly fitting the angle steel 51 with the outer wall of the tool 1 by using a trapezoidal pressing block 14 and a first spring 13 through cooperation of a wedge-shaped block 20 and a rotating block 17 when the first clamping block 12 and the right-angle clamping block 15 move in the middle;
S3, after the angle steel 51 is limited by the first clamping block 12 and the right-angle clamping block 15, the rotating shaft 2 and the first gear 10 continue to rotate, and due to the cooperation of the trapezoidal pin 28 and the clamping groove 26, the bidirectional screw rod 11 remains static when the first gear 10 continues to drive the third gear 25 to rotate, the rotating shaft 2 drives the first connecting rod 4 and the second connecting rod 6 to rotate, the first connecting rod 4 and the second connecting rod 6 can pull the vertical L-shaped clamping block 5 and the U-shaped sleeve 7 to the middle, at the moment, the angle steel 51 can be fixed again by the cooperation of the vertical L-shaped clamping block 5 and the transverse L-shaped clamping block 8, and due to the different sizes of the angle steel 51, the threaded rod 9 can be rotated to adjust the lifting of the transverse L-shaped clamping block 8, so that the angle steel 51 with different sizes is applicable;
s4, when the tool 1 needs manual operation and is used for welding cross arms manually, the angle steel 51 is fixed through the rotating shaft 2, the rotating disc 3 can push the fourth transverse plate 55 to move upwards through the connecting rod 56 when rotating, the fourth transverse plate 55 drives the rotating rod 57 to rotate, the two dust scraping plates 60 move towards the middle and are matched with the first rack 58, then when polishing the top of the angle steel 51 and welding the diagonal steel 51, scrap iron falls into the tool 1, after welding is finished, the rotating shaft 2 is reversely rotated, the fixing of the angle steel 51 is released, the connecting rod 56 drives the fourth transverse plate 55 to move downwards, the two dust scraping plates 60 move towards two sides under the action of the rotating rod 57, and then the scrap iron falling into the tool 1 can be discharged out of the outside through the inclined hole 53;
S5, the metal conveyor belt 31 conveys the tool 1 to one side to automatically clamp the angle steel 51 through the first rack 58, then the driving motor 34 drives the polishing disc 35 to rotate to polish the middle position of the top of the angle steel 51, so that the M-shaped backing plate 48 is welded on the angle steel 51 in the later stage, when the tool 1 moves to the lower part of the second transverse plate 36, the M-shaped backing plate 48 is placed at the middle position of the top of the angle steel 51 through the placement hole 37, when the position sensor 47 detects that the M-shaped backing plate 48 moves to the lower part of the third transverse plate 38, the rotary motor 40 is started to drive the reciprocating screw 39 to rotate, the reciprocating screw 39 drives the two first welding guns 43 to move to one side through the T-shaped block 42, the two first welding guns 43 can weld the M-shaped backing plate 48 with the two sides of the angle steel 51, after the third transverse plate 38 moves to the end of the rectangular hole 41, the second welding gun 44 can continuously convey the moved M-shaped backing plate 48, and the other sides of the M-shaped backing plate 48 can be welded, so that the tool 1 can be automatically finished in the conveying process;
s6, when the metal conveyor belt 31 conveys the tool 1 to the lower side, the second gear 24 is meshed with the second rack 49, the second rack 49 drives the second gear 24 and the rotating shaft 2 to reversely rotate, at the moment, the clamping of the vertical L-shaped clamping block 5, the horizontal L-shaped clamping block 8, the right-angle clamping block 15 and the first clamping block 12 on the angle steel 51 can be automatically released, and the angle steel 51 and the M-shaped backing plate 48 fall on the material guiding inclined plate 50 under the action of gravity, so that later-stage workers can conveniently collect the materials.
However, as well known to those skilled in the art, the working principles and wiring methods of the electric push rod 45, the position sensor 47, the rotary motor 40 and the driving motor 34 are well known, which are all conventional means or common knowledge, and are not described herein in detail, and any optional matching can be performed by those skilled in the art according to their needs or convenience.
The present invention is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present invention, and the changes or substitutions are intended to be covered by the scope of the present invention; embodiments of the invention and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (10)

1. Low pressure four-wire cross arm welding frock, its characterized in that includes:
the tool comprises a tool (1) and angle steel (51), wherein the bottom of the tool (1) is fixedly connected with a bottom plate (21), and a plurality of magnets (22) are fixedly embedded in the bottom of the bottom plate (21);
the length limiting structure is arranged in the tool (1) and is used for clamping the angle steel (51) at the top of the tool (1) in the middle, so that later welding is facilitated;
The clamping structure is arranged in the tool (1) and used for tightly clamping the angle steel (51) on the outer wall of the tool (1) so as to prevent the angle steel (51) from shaking in the later welding process.
2. The low-pressure four-wire cross arm welding fixture according to claim 1, wherein the length limiting structure comprises a bidirectional screw rod (11) rotationally connected in the fixture (1), a third gear (25) is clamped on the outer wall of the bidirectional screw rod (11), a first clamping block (12) and a right-angle clamping block (15) which are in sliding fit with the fixture (1) are sleeved on the outer wall thread of the bidirectional screw rod (11), the first clamping block (12) and the right-angle clamping block (15) are respectively positioned on positive and negative thread sections of the bidirectional screw rod (11), the top end of the first clamping block (12) extends to the upper side of the fixture (1), a trapezoidal pressing block (14) for pressing diagonal steel (51) is slidingly connected in the first clamping block (12), a first spring (13) is fixedly connected to the top of the trapezoidal pressing block (14), two fixing shafts (16) are fixedly connected in the right-angle clamping block (15), the outer wall of the fixing shaft (16) is provided with a wedge-shaped pressing block (17) for pressing the two fixing shafts (17) which are used for pressing the wedge-shaped steel (17), two one ends that torsional spring (18) are close to each other all with rotating block (17) fixed connection, the other end of torsional spring (18) and one side inner wall fixed connection of right angle clamp splice (15), two limiting plates (19) of fixedly connected with in right angle clamp splice (15), and limiting plate (19) are used for spacing rotating block (17).
3. The low-voltage four-wire cross arm welding tool according to claim 1, wherein the clamping structure comprises a rotating shaft (2) which is rotationally connected in the tool (1), two turntables (3) are fixedly sleeved on the outer wall of the rotating shaft (2), a first connecting rod (4) is rotationally connected to one side of each turntable (3), a second connecting rod (6) is rotationally connected to one side of each turntable (3) through a pin shaft, a vertical L-shaped clamping block (5) which is clamped in the vertical direction of diagonal steel (51) is rotationally connected to the top end of each first connecting rod (4), the vertical L-shaped clamping block (5) is slidably connected with a U-shaped sleeve (7) which is slidably connected with the tool (1) at one end, away from each second connecting rod (6), of each U-shaped sleeve (7) is slidably connected with a threaded rod (9) which is in threaded connection with each transverse L-shaped clamping block (8).
4. The low-voltage four-wire cross arm welding tool according to claim 2, wherein a plurality of sliding grooves (27) are formed in the outer wall of the bidirectional screw rod (11), trapezoidal pins (28) are slidably connected in the sliding grooves (27), a second spring (29) is fixedly connected to one side, close to each other, of each trapezoidal pin (28), the other end of the second spring (29) is fixedly connected with the inner wall of one side of the sliding groove (27), and a plurality of clamping grooves (26) with the trapezoidal pins (28) in fit are formed in the third gear (25).
5. A low-voltage four-wire cross arm welding fixture according to claim 3, characterized in that one end of the rotating shaft (2) extends to one side of the fixture (1), a sliding sleeve (23) positioned on one side of the fixture (1) is arranged on the outer wall sliding sleeve of the rotating shaft (2), and a second gear (24) is fixedly connected to one end, far away from the fixture (1), of the sliding sleeve (23).
6. The low-voltage four-wire cross arm welding tool according to claim 1, wherein a sliding rod (52) is fixedly connected in the tool (1), two dust scraping plates (60) are arranged on the outer wall sliding sleeve of the sliding rod (52), two telescopic rods (54) are fixedly connected to the bottom inner wall of the tool (1), two same fourth cross plates (55) are fixedly connected to the output shaft of the telescopic rods (54), a connecting rod (56) is slidably connected to the top of the fourth cross plates (55), one end of the connecting rod (56) is rotatably connected with a pin shaft on one side of one turntable (3), the other end of the connecting rod (56) is rotatably connected with one side of the other turntable (3), two rotating rods (57) are rotatably connected to the bottom of the fourth cross plates (55), the bottom ends of the rotating rods (57) are rotatably connected with the tops of the two dust scraping plates (60) respectively, shielding strips (59) positioned above the dust scraping plates (60) are fixedly sleeved on the outer wall of the telescopic rods, and the shielding strips (59) can be used for preventing iron filings from falling out of the two outer side of the tool (1).
7. An automatic welding device for a low-voltage four-wire cross arm, which is used for welding angle steel clamped by the tool set in claims 1-6, and is characterized by comprising:
the novel steel angle iron welding machine comprises two supports (30) and M-shaped base plates (48), wherein a metal conveyor belt (31) is arranged between the two supports (30), a first transverse plate (33), a second transverse plate (36) and a third transverse plate (38) are fixedly connected between the two supports (30), a driving motor (34) is fixedly connected to the top of the first transverse plate (33), an output shaft of the driving motor (34) rotates to penetrate through the first transverse plate (33) and is fixedly connected with a polishing disc (35), polishing is carried out on the top of the angle steel (51) at the central position through the polishing disc (35), later welding is facilitated, and a placing hole (37) for placing the M-shaped base plates (48) on the top of the angle steel (51) is formed in the second transverse plate (36);
and the welding structure is arranged in the third transverse plate (38) and is used for automatically welding the M-shaped backing plate (48) and the angle steel (51).
8. The automatic welding device for the low-pressure four-wire cross arm according to claim 7, wherein the welding structure comprises a rotating motor (40) fixedly connected to the top of a third cross plate (38), the top of the third cross plate (38) is rotatably connected with a reciprocating screw rod (39) through a base, an output shaft of the rotating motor (40) is fixedly connected with one end of the reciprocating screw rod (39), a T-shaped block (42) in threaded connection with the reciprocating screw rod (39) is slidably connected to the top of the third cross plate (38), two rectangular holes (41) are formed in the third cross plate (38), two first welding guns (43) for welding an M-shaped backing plate (48) and angle steel (51) are slidably connected to the rectangular holes (41), the top ends of the two first welding guns (43) are fixedly connected with the bottom of the third cross plate (38), two second welding guns (44) are fixedly connected to the two sides of the bottom of the third cross plate (38), an electric pushing rod (45) and an electric pressing block (45) are fixedly connected to the bottom of the third cross plate (38), and the electric pushing rod (45) is fixedly connected with an output shaft (46).
9. The automatic welding device for the low-pressure four-wire cross arm according to claim 7, wherein an L-shaped hole (32) for placing angle steel (51) on a tool (1) is formed in one bracket (30), a first rack (58) and a second rack (49) are fixedly connected to one side of the other bracket (30), the first rack (58) and the second rack (49) are respectively located above and below the L-shaped hole (32), the first rack (58) and the second rack (49) are meshed with the second gear (24), and a guide inclined plate (50) located below the metal conveyor belt (31) is fixedly connected between the two brackets (30).
10. The application method of the low-voltage four-wire cross arm automatic welding device is characterized by comprising the following steps of:
s1, adsorbing a tool (1) on the surface layer of a metal conveyor belt (31) through a magnet (22), starting the metal conveyor belt (31), conveying a plurality of tools (1) by the metal conveyor belt (31), inserting an angle steel (51) into the top of the tool (1) through an L-shaped hole (32) after the tool (1) moves to a position corresponding to the L-shaped hole (32), attaching an inner right angle surface of the angle steel (51) to an outer right angle surface of the tool (1), pushing two rotating blocks (17) to rotate into the tool (1) in the inserting process of the angle steel (51) until one end of the angle steel (51) is contacted with a first clamping block (12), and then pulling a sliding sleeve (23) and a second gear (24) outwards;
S2, a metal conveyor belt (31) conveys a tool (1) and angle steel (51) to one side, when a second gear (24) is meshed with a first rack (58), the second gear (24) drives a sliding sleeve (23) and a rotating shaft (2) to rotate under the action of the first rack (58), a first gear (10) is meshed with a third gear (25) (the first gear (10) can drive the third gear (25) and a bidirectional screw rod (11) to rotate for a plurality of times through a gearbox, the third gear (25) drives a first clamping block (12) and a right-angle clamping block (15) to move towards the middle through the bidirectional screw rod (11), the first clamping block (12) and the right-angle clamping block (15) can primarily clamp the angle steel (51), so that the angle steel (51) can be centered, and when the first clamping block (12) and the right-angle clamping block (15) move in the middle, a trapezoid pressing block (14) and the first spring (13) are matched, and a wedge block (20) and a rotating block (17) can tightly attach the angle steel (1) to the outer wall of the tool;
s3, after the first clamping block (12) and the right-angle clamping block (15) limit the angle steel (51), the rotating shaft (2) and the first gear (10) continue to rotate, because of the cooperation of the trapezoidal pin (28) and the clamping groove (26), when the first gear (10) continues to drive the third gear (25) to rotate, the bidirectional screw rod (11) is kept still, the rotating shaft (2) drives the first connecting rod (4) and the second connecting rod (6) to rotate, the first connecting rod (4) and the second connecting rod (6) can pull the vertical L-shaped clamping block (5) and the U-shaped sleeve (7) to the middle, at the moment, the cooperation of the vertical L-shaped clamping block (5) and the horizontal L-shaped clamping block (8) can fix the angle steel (51) again, and the lifting of the horizontal L-shaped clamping block (8) can be adjusted due to the different sizes of the angle steel (51), and the angle steel (51) is further suitable for angle steel (51) with different sizes;
S4, when the tool (1) needs manual operation and is used for welding a cross arm, angle steel (51) is fixed through a rotating shaft (2), a rotating disc (3) can push a fourth transverse plate (55) to move upwards through a connecting rod (56) when rotating, the fourth transverse plate (55) drives a rotating rod (57) to rotate, two dust scraping plates (60) move towards the middle and are matched with a first rack (58), then when the top of the angle steel (51) is polished and the diagonal steel (51) is welded, scrap iron falls into the tool (1), after welding is finished, the rotating shaft (2) is reversely rotated, the fixing of the angle steel (51) is released, the connecting rod (56) drives the fourth transverse plate (55) to move downwards, and the two dust scraping plates (60) move towards two sides under the action of the rotating rod (57), so that the scrap iron falling into the tool (1) can be discharged outside through inclined holes (53);
s5, the metal conveyor belt (31) conveys the tool (1) to one side, clamping can be automatically completed on the angle steel (51) through the first rack (58), then the grinding disc (35) is driven by the driving motor (34) to rotate, grinding can be carried out on the middle position of the top of the angle steel (51), the M-shaped backing plate (48) can be welded on the angle steel (51) in the later stage, when the tool (1) moves to the lower side of the second transverse plate (36), the M-shaped backing plate (48) is placed on the middle position of the top of the angle steel (51) through the placement hole (37), when the position sensor (47) detects that the M-shaped backing plate (48) moves to the lower side of the third transverse plate (38), the reciprocating screw (39) is driven by the driving motor (40) to rotate, the reciprocating screw (43) is driven to move to one side through the T-shaped block (42), the M-shaped backing plate (48) and two sides of the angle steel (51) can be welded, when the third transverse plate (38) moves to the middle position of the top of the angle steel (51), and the second transverse plate (41) can be welded, and the second side (41) can be conveyed to the welding can be continuously welded in the process, and the welding can be carried out on the second transverse plate (41);
S6, when metal conveyor belt (31) carries frock (1) to the below, second gear (24) meshes with second rack (49), second rack (49) drive second gear (24) and pivot (2) reverse rotation, can automatic release vertical L type clamp splice (5), horizontal L type clamp splice (8) and right angle clamp splice (15), the centre gripping of first clamp splice (12) diagonal steel (51) this moment, angle steel (51) and M type backing plate (48) fall on guide swash plate (50) under the action of gravity, make things convenient for later stage staff to collect.
CN202310476809.0A 2023-04-28 2023-04-28 Low-voltage four-wire cross arm welding tool and automatic welding device and method Active CN116460507B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310476809.0A CN116460507B (en) 2023-04-28 2023-04-28 Low-voltage four-wire cross arm welding tool and automatic welding device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310476809.0A CN116460507B (en) 2023-04-28 2023-04-28 Low-voltage four-wire cross arm welding tool and automatic welding device and method

Publications (2)

Publication Number Publication Date
CN116460507A true CN116460507A (en) 2023-07-21
CN116460507B CN116460507B (en) 2023-10-10

Family

ID=87185087

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310476809.0A Active CN116460507B (en) 2023-04-28 2023-04-28 Low-voltage four-wire cross arm welding tool and automatic welding device and method

Country Status (1)

Country Link
CN (1) CN116460507B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117086533A (en) * 2023-10-19 2023-11-21 扬州江淮宏运客车有限公司 Automatic welding device for side plates of automobile cargo compartment
CN117182776A (en) * 2023-11-07 2023-12-08 太仓越华精密机械配件有限公司 High-rigidity metal clamping tool for machining
CN117226403A (en) * 2023-11-09 2023-12-15 风通动力环境科技(成都)有限公司 Valve frame welding device
CN117260142A (en) * 2023-11-21 2023-12-22 江苏兴齐智能输电科技有限公司 Electric pole cross arm welding frock

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208543150U (en) * 2018-07-18 2019-02-26 江苏金阳交通工程有限公司 A kind of railway guardrail splicing welding jigs and fixtures
CN113878277A (en) * 2021-11-24 2022-01-04 德州职业技术学院(德州市技师学院) Automatic change welding industrial robot
WO2022252480A1 (en) * 2021-05-31 2022-12-08 南京蹑波物联网科技有限公司 Clamp mechanism for use in automated welding tool
CN115502617A (en) * 2022-09-16 2022-12-23 安徽赛腾智能制造有限公司 Automatic welding tool for square pipe fitting of new energy automobile
CN218874283U (en) * 2023-01-12 2023-04-18 江门市科美钢柜有限公司 Cabinet body panel processing welding set

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208543150U (en) * 2018-07-18 2019-02-26 江苏金阳交通工程有限公司 A kind of railway guardrail splicing welding jigs and fixtures
WO2022252480A1 (en) * 2021-05-31 2022-12-08 南京蹑波物联网科技有限公司 Clamp mechanism for use in automated welding tool
CN113878277A (en) * 2021-11-24 2022-01-04 德州职业技术学院(德州市技师学院) Automatic change welding industrial robot
CN115502617A (en) * 2022-09-16 2022-12-23 安徽赛腾智能制造有限公司 Automatic welding tool for square pipe fitting of new energy automobile
CN218874283U (en) * 2023-01-12 2023-04-18 江门市科美钢柜有限公司 Cabinet body panel processing welding set

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117086533A (en) * 2023-10-19 2023-11-21 扬州江淮宏运客车有限公司 Automatic welding device for side plates of automobile cargo compartment
CN117086533B (en) * 2023-10-19 2024-01-30 扬州江淮宏运客车有限公司 Automatic welding device for side plates of automobile cargo compartment
CN117182776A (en) * 2023-11-07 2023-12-08 太仓越华精密机械配件有限公司 High-rigidity metal clamping tool for machining
CN117182776B (en) * 2023-11-07 2024-02-20 太仓越华精密机械配件有限公司 High-rigidity metal clamping tool for machining
CN117226403A (en) * 2023-11-09 2023-12-15 风通动力环境科技(成都)有限公司 Valve frame welding device
CN117226403B (en) * 2023-11-09 2024-02-06 风通动力环境科技(成都)有限公司 Valve frame welding device
CN117260142A (en) * 2023-11-21 2023-12-22 江苏兴齐智能输电科技有限公司 Electric pole cross arm welding frock
CN117260142B (en) * 2023-11-21 2024-03-22 江苏兴齐智能输电科技有限公司 Electric pole cross arm welding frock

Also Published As

Publication number Publication date
CN116460507B (en) 2023-10-10

Similar Documents

Publication Publication Date Title
CN116460507B (en) Low-voltage four-wire cross arm welding tool and automatic welding device and method
CN111390730A (en) Part clamping and polishing machine equipment and working method thereof
CN113118696B (en) Intelligent welding device and method for pipe fitting end flange
CN109590758B (en) Self-align pipeline is with cutting tub device
CN113401767B (en) Elevator guide rail support pre-installation equipment
KR20140000114A (en) Pipe round cutting apparatus
CN215967988U (en) Grinding device for machining
CN208575439U (en) A kind of grinding roller of vertical mill Bead weld repair device
CN104325287A (en) Gear shifter handle ball head installing equipment
CN112345367A (en) Water pressure testing device for explosion-proof product
CN116393603A (en) Socket type flaring equipment
CN214191315U (en) Panel processingequipment with transport structure
CN108817242A (en) Fixture and electric tube expander with it
CN216028958U (en) Welding device for hardware machining
CN113799013B (en) Anchor clamps for mechanical maintenance
CN212793153U (en) Positioner is used in power takeoff spare part processing
CN210908804U (en) Automatic assembly device for head shell and rotor of angle grinder
CN112091334A (en) Lead screw and nut batch tapping device and tapping method
CN112192430A (en) Copper bar polishing machine
CN107171516B (en) Stator coil binding machine
CN112276750A (en) Automatic feeding lathe equipment and working method thereof
CN209349738U (en) A kind of metal product processing welder
CN211393534U (en) Hoisting machine constructs convenient to installation
CN216990866U (en) Anchor clamps are used in gyro wheel processing
CN220612827U (en) Cable auxiliary welding frock

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant